Essential Design Pattern Websites

I just wanted to check out Active Object Pattern from Douglas C.Schmidt which I have not finished reading yet. I happened to explore some links on his websites and finally found the following:

• "Everything you want to know about Design Pattern" (I name it this way!) on edlin.org is a collection of links to other websites which good categorized by topics.
  
• Design Patterns, Pattern Languages and Frameworks from Douglas C.Schmidt
• Design Patterns in Python. (For Python lover, I made a separate link from Pattern topics).
  

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"To build may have to be the slow and laborious task of years.
To destroy can be the thoughtless act of a single day." Sir Winston Churchill